EUTECH INSTRUMENTS ECOPHTEST2 Manual De Instrucciones página 2

Waterproof EcoTestr pH 2 Microprocessor-based Pocket pH Tester
Note: DO NOT BE ALARMED if white crystals form around the cap, this is normal.
CONDITIONING before first use. Fill the cap with water, close the cap and soak the sensor for 1 hour to activate the
sensor and dissolve the crystals. Keep the tester upright during soaking, as the cap is not leak proof.
CALIBRATION: This tester allows up to 3-point calibration. Start with pH 7 buffer. To cancel calibration, press cal to
escape. If no button is pressed for 15 seconds, tester will automatically confirm calibration.
1. Press on/off button to switch the tester on
2. Rinse the sensor with De-ionized water
3. Put the sensor in pH7 buffer (2cm deep)
4. Wait for the value to stabilize
MEASUREMENT: Remove cap and press on/off to turn on the tester  Dip the sensor about 20 mm into the test
solution  Stir once and let the display stabilize. Note the pH value  Press hold/ent to hold the reading. Press
hold/ent again to release the held reading  Press on/off to shut off  Tester automatically shuts off after 8.5
minutes of non-use.
MAINTENANCE: Rinse the sensor in tap water after use. In harsh samples, take readings quickly, rinse sensor
immediately afterwards with de-ionized water to remove residues and prevent sensor contamination. To maximize
sensor life, fill the cap with 20 mm clean tap water (NOT DE-IONIZED WATER), and replace cap.
CHANGING BATTERIES: Lift up front battery cover and two sides of
the pocket clip to remove battery cover. Remove old batteries and
replace with fresh ones noting polarity as shown in battery
compartment. You do not need to re-calibrate.
ERROR MESSAGES: Lb - Weak batteries. Need replacement. Er -
Wrong or bad buffer value (out of range) or the sensor is failing. Or /
Ur – Over and Under range signal or sensor is contaminated /
damaged.
RESET option restores the calibration back to factory default settings  Turn off the tester  Press and hold cal
button and then switch on. The display shows a blinking 'rS' (reset)  Press hold/ent to reset or cal to cancel reset.
WARRANTY: The tester has a warranty against manufacturing defects for ONE year from date of purchase.
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5. Press CAL, display will flash
6. Press HOLD/ENT to confirm
7. Repeat steps 2 to 6 for pH4 and/or pH10
EcoTestr pH2
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